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/*
* This file is part of Krita
*
* Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef KIS_EXIF_VALUE_H
#define KIS_EXIF_VALUE_H
#include <qdom.h>
#include <qcstring.h>
#include <qstring.h>
typedef QMemArray<Q_UINT8> UByteArray;
struct KisExifRational {
Q_UINT32 numerator;
Q_UINT32 denominator;
};
struct KisExifSRational {
Q_INT32 numerator;
Q_INT32 denominator;
};
class ExifValue {
typedef union {
Q_UINT8 m_byte;
Q_UINT16 m_short;
Q_UINT32 m_long;
KisExifRational m_rational;
Q_INT8 m_sbyte;
Q_INT16 m_sshort;
Q_INT32 m_slong;
KisExifSRational m_srational;
float m_float;
double m_double;
} ExifNumber;
public:
enum ExifType {
EXIF_TYPE_BYTE = 1,
EXIF_TYPE_ASCII = 2,
EXIF_TYPE_SHORT = 3,
EXIF_TYPE_LONG = 4,
EXIF_TYPE_RATIONAL = 5,
EXIF_TYPE_SBYTE = 6,
EXIF_TYPE_UNDEFINED = 7,
EXIF_TYPE_SSHORT = 8,
EXIF_TYPE_SLONG = 9,
EXIF_TYPE_SRATIONAL = 10,
EXIF_TYPE_FLOAT = 11,
EXIF_TYPE_DOUBLE = 12,
EXIF_TYPE_UNKNOW = 13
};
enum ByteOrder {
BYTE_ORDER_MOTOROLA,
BYTE_ORDER_INTEL
};
ExifValue() : m_ifd(-1), m_type(EXIF_TYPE_UNKNOW), m_components(0), m_value(0) { }
ExifValue(ExifType type, unsigned char *data, unsigned int size, int ifd, uint components, ExifValue::ByteOrder order);
virtual bool load(const QDomElement& elmt);
virtual QDomElement save(QDomDocument& doc);
/**
* Return the type of the array
*/
inline ExifType type() { return m_type; }
inline const UByteArray asUndefined() {
if(m_type == EXIF_TYPE_UNDEFINED)
return *(UByteArray*) m_value;
return UByteArray();
}
inline void setAsUndefined(const unsigned char *data, unsigned int size)
{
if(m_type == EXIF_TYPE_UNDEFINED)
{
((UByteArray*)m_value)->duplicate(data, size);
m_components = size;
}
}
inline const QString asAscii() {
if(m_type == EXIF_TYPE_ASCII)
return QString(*(QString*) m_value);
return QString();
}
inline void setAsAscii(char* data)
{
if(m_type == EXIF_TYPE_ASCII)
{
QString str = QString((char*) data);
*(QString*)m_value = str;
m_components = str.length();
}
}
inline void setAsAscii(QString str)
{
*(QString*)m_value = str;
m_components = str.length();
}
void convertToData(unsigned char ** data, unsigned int* size, ExifValue::ByteOrder order);
/**
* Return the ifd number to which this ExifValue belongs.
*/
inline int ifd() { return m_ifd; }
/**
* Return the number of components of this ExifValue
*/
inline uint components() { return m_components; }
/**
* This function return the value of a the ExifValue as a string.
*/
QString toString();
inline Q_UINT8 asByte(uint i)
{
if(m_type == EXIF_TYPE_BYTE)
return asExifNumber(i).m_byte;
return 0;
}
inline void setValue(uint i, Q_UINT8 v)
{
((ExifNumber*)m_value)[i].m_byte = v;
}
inline Q_UINT8 asShort(uint i)
{
if(m_type == EXIF_TYPE_SHORT)
return asExifNumber(i).m_short;
return 0;
}
inline void setValue(uint i, Q_UINT16 v)
{
((ExifNumber*)m_value)[i].m_short = v;
}
inline Q_UINT8 asLong(uint i)
{
if(m_type == EXIF_TYPE_LONG)
return asExifNumber(i).m_long;
return 0;
}
inline void setValue(uint i, Q_UINT32 v)
{
((ExifNumber*)m_value)[i].m_long = v;
}
inline KisExifRational asRational(uint i)
{
if(m_type == EXIF_TYPE_RATIONAL)
return asExifNumber(i).m_rational;
return KisExifRational();
}
inline void setValue(uint i, Q_UINT32 n, Q_UINT32 d)
{
((ExifNumber*)m_value)[i].m_rational.numerator = n;
((ExifNumber*)m_value)[i].m_rational.denominator = d;
}
inline void setValue(uint i, KisExifRational r)
{
((ExifNumber*)m_value)[i].m_rational = r;
}
inline Q_INT8 asSByte(uint i)
{
if(m_type == EXIF_TYPE_SBYTE)
return asExifNumber(i).m_sbyte;
return 0;
}
inline void setValue(uint i, Q_INT8 v)
{
((ExifNumber*)m_value)[i].m_sbyte = v;
}
inline Q_INT16 asSShort(uint i)
{
if(m_type == EXIF_TYPE_SSHORT)
return asExifNumber(i).m_sshort;
return 0;
}
inline void setValue(uint i, Q_INT16 v)
{
((ExifNumber*)m_value)[i].m_sshort = v;
}
inline Q_INT32 asSLong(uint i)
{
if(m_type == EXIF_TYPE_SLONG)
return asExifNumber(i).m_slong;
return 0;
}
inline void setValue(uint i, Q_INT32 v)
{
((ExifNumber*)m_value)[i].m_slong = v;
}
inline KisExifSRational asSRational(uint i)
{
if(m_type == EXIF_TYPE_SRATIONAL)
return asExifNumber(i).m_srational;
return KisExifSRational();
}
inline void setValue(uint i, KisExifSRational r)
{
((ExifNumber*)m_value)[i].m_srational = r;
}
inline void setValue(uint i, Q_INT32 n, Q_INT32 d)
{
((ExifNumber*)m_value)[i].m_srational.numerator = n;
((ExifNumber*)m_value)[i].m_srational.denominator = d;
}
inline float asFloat(uint i)
{
if(m_type == EXIF_TYPE_FLOAT)
return asExifNumber(i).m_float;
return 0.;
}
inline void setValue(uint i, float v)
{
((ExifNumber*)m_value)[i].m_float = v;
}
inline double asDouble(uint i)
{
if(m_type == EXIF_TYPE_DOUBLE)
return asExifNumber(i).m_double;
return 0.;
}
inline void setValue(uint i, double v)
{
((ExifNumber*)m_value)[i].m_double = v;
}
private:
/**
* Return the ith component as a string.
*/
QString toString(uint i);
void setValue(const unsigned char *data, unsigned int size, ExifValue::ByteOrder order);
/**
* Return the ExifValue as a number.
*/
inline const ExifNumber asExifNumber(uint index)
{
Q_ASSERT(index < m_components);
return ((ExifNumber*)m_value)[index];
}
inline void setAsExifNumber(uint index, ExifNumber n)
{
Q_ASSERT(index < m_components);
((ExifNumber*)m_value)[index] = n;
}
/**
* This function will allocate the memory used for storing the current data.
*/
void allocData();
private:
int m_ifd;
ExifType m_type;
uint m_components;
void *m_value;
};
#endif
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